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Bug#939633: More severe #939633 for RP4 on 5.8?

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found 939633 5.8.10-1~bpo10+1
severity 939633 important
merge 935456 939633
quit

I'm left suspecting bugs #935456 and #939633, are in reality a single
bug: Raspberry Pi device trees were garbled during Debian's 5.2 kernel
development.

They appear to remain very garbled, to the point of being pretty well
useless.  I've built a kernel from Debian's 5.8 kernel source and the
device tree binary produced doesn't appear to allow a Raspberry PI 4B
to complete its boot.  Might be USB functionality is operational, but
neither ethernet interface nor display function.

Ironically, the additional ACPI/EFI support DOES function.  This means
the Tianocore image for Raspberry PI 4B works better with the current
source.

I'm unsure whether badly breaking all Raspberry PI variants quite
justifies critical or grave (popular machine, but kernel issues by nature
cause 10x the damage so severities should be somewhat damped).

I certainly hope to see the 5.9 release since that has additional
high-value improvements...


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Bug#939633: Rpi3+ hangs with kernel 5.2 device_tree eHenry Berg <ehenry.berg@gmail.com> - 2019-09-07 09:00 +0200
  Bug#939633: linux: rpi3b+ hangs with kernels 5.2, 5.3 (device tree issue?) Thorsten Glaser <t.glaser@tarent.de> - 2019-11-20 20:00 +0100
    Processed: Re: linux: rpi3b+ hangs with kernels 5.2, 5.3 (device  tree issue?) "Debian Bug Tracking System" <owner@bugs.debian.org> - 2019-11-20 20:00 +0100
  Bug#939633: More severe #939633 for RP4 on 5.8? Elliott Mitchell <ehem+debian@m5p.com> - 2020-11-26 03:00 +0100
    Processed (with 1 error): More severe #939633 for RP4 on 5.8? "Debian Bug Tracking System" <owner@bugs.debian.org> - 2020-11-26 03:00 +0100
    Bug#939633: More severe #939633 for RP4 on 5.8? Elliott Mitchell <ehem+debian@m5p.com> - 2020-11-28 05:50 +0100
      Processed: Re: More severe #939633 for RP4 on 5.8? "Debian Bug Tracking System" <owner@bugs.debian.org> - 2020-11-28 05:50 +0100
      Bug#939633: More severe #939633 for RP4 on 5.8? Ben Hutchings <ben@decadent.org.uk> - 2020-12-13 19:10 +0100

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